Thermostat.



J. L; NIX. THERMOSTAT. APPLICATION FILED JULY24. 1906.

PATENTED JUNE 18, 1907.

2 SHEETS-SHEET 1;

J. L. NIX.

THERMOSTAT. APPLICATION rnnn mun. 1900.

2 SHEETS-SHEET 2.

P TEyTED JUNE 61a, 1907.

place upon the Wall of an incubator.

me its sire-rise sirens orrion Minis L. NIX, or HOMER onYj-rrNNsYLvAiini.

TH E RMQSTAT.

No. ssvaees.

To'mll' whom it may concern:

Be it known that I, JAMEs L. NlX, a citizen of the United States, and aresident of Homer City, Pennsylganie, have invented certs-in new and useful Improvement in Thermostats, of which the following is e specification.

My invention relzitcs to improvements in thermostats, and has for its object to provide a simple and economical thermostat especially ode ted'for use in incubators.

In the rowings: Figure 1 s aperspective view of the thermostat of my invention in Fig. 2 is a perspective view of an incubator showing the connecting means between the thermo stat and the heat valve. Fig. 3 is an en lorged longitudinal plan view of the thermostat. Fig; 4 is an enlarged perspective view of the thermostat in placeupon the well of an incubator. Fig. 5 is transverse sectional view showing the mode of attachment of the thermostat to the well of the incubator.

The thermostat of my invention corn-- prises a channeled metallic strip seated within a channeled metallic strip 6, the strip 6 halving its side walls cut away at a point be tween its ends as indicated by the numeral 2-, and being slightly bent at the point where its walls are so cut away. A third channeled strip-member 8 is" mounted upon the-strip (5, being cut away at e point between its ends as indicated by the numeral 9, the strips 8 and (i being attached to each other at the point where their side walls are cut away, by the rivet ll). Within the channeled strip 3 the -lninncledmnunber ll is seated. The strips 5 and 6 are commuted at their outer extremitics by the rivet 12. The strips 8 and 11 are connected at their outer ends by the rivet 13; and the four strips or chmineleddnenihers 5,

l), 3 and 1] are secured rigidly to each other at their ends opposite to those secured by the rivets 112 and 13, by the-rivet 1 Within the channeledmember 11st e point near the fixed end of the theri'nostat, I have provided the bracket-member 15, which is riveted to the member 11 by the rivet 36; the inner end of the bracket-n\einbcr 15 being SQCUFGKi to the well oil the incubator by the screws 1?. ol' the thermostat the strip-mmniwrs 8 and 11 are secured to the .hrnr-loet lb. "lho bracket 13 is recessed as indicated by the numeral 19 to receive the bell-emuli-lcvcr 2U,

Specification of Letters Fetent. Application filed July 24, 19b5, Serial NO. 327 585- At the iron or oporotingeini Patented June 18, 19oz.

which is pivotelly mounted within the bracket 18 at the point indicated by the numeral 2i.

The inner erin 2:2 of the bell-crankrlever 20 is pro ided with" :1 connecting bolt 23 whose threaded end extends through. the outer end 24 of, the strip-member 5, andis provided with the thumb-screw 25. The outer M11126 of the bell-crsnk-lever -20. extends through the opening 27 in the well of the incubator, and at its outer extremity 28 is provided with s. screw-threaded connecting rod 29, which connects it to the valve lever 30. The rod 29 is provided st its lower end with the thumb-screw 31 to facilitate the ad- Among the advantages of this form of therznostet are the following.

stet may be attached to thebecli, side, bot-4' toni, or ceiling of the egg-chamber, and can be worked in a horizontal or vertical position. it is very simple of construction, the thermo stat pro-per embodying but four members. It very ell ective in practice, a, thermostat of this construction having developed five times the movement and power of the ordinary thcrn'iostat used for incubator purposes in the prior art and containing twice the weight of inctel employed in the present ther lost-st. strips 6 and, 8 are com- 'l ie posed of the hind oi metal, soy pine, while the strips 5 and 11 are of onekind, say steel, being exg'rensible.

llsving lolly described my invention, What i 0 din es new and desire to have secured to me oy tl e "mntoi Letters Patent, is:

1. in a device of the class described, two inner channeled-meinbers secured back to hook at a point between their ends, and being bent outwardly from said point to'their' outer extremities; two outer chenneled-members set in the first horned channeled--men1l;)ers, the four znei'nhers being secured together at their inner ends, and the outer channeledmembcrs being secured to the inner chenneled nenibcrs at their outer ends, substantially described.

The thermoj I I 2. The herein described thermostat comprising the channeled-members 6 and 8, a channeled-member 5 seated in the channeledmember 6, the channeled-member 11 seated in the channeled-member S, the members 5,

cured together at their outer ends and the v members 8 and 11 being seeured te eaeh ether at their outer-ends, substantially as described.

In testimony whereof, I have signed my name to this speeificatiomin presence of twosubscribing witnesses.

' JAMES L. NIX.

Witnesses:

' C. F. JAM'ISON,

HARRY A. McALEN. 

